A question on switch_statement. Can any one with kindness help me?
I am using Dev-C++ with boost lambda expression, and I wrote the following lines:
................
int result,switchvalue;
..............
(switch_statement(_1,
case_statement<1>
(var(result)=0),
case_statement<2>
(var(result)=1),
case_statement<3>
(var(result)=constant(value)),
default_statement
(var(std::cout)<<"wrong")
))(switchvalue);
but the complier told me that:
instantiated from `Arg::sig
Oh,I made a mistake.value is a double.And I need to round it to int . And I still want to know whether I can use make_const(switchvalue) or constant(switchvalue) instead of switchvalue? Even var(switchvalue)? in : int result,switchvalue; .............. (switch_statement(_1, case_statement<1> (var(result)=0), case_statement<2> (var(result)=1), case_statement<3> (var(result)=constant(value)), default_statement (var(std::cout)<<"wrong") ))(switchvalue);
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fmingu